Home / 2,806.55-3,873.04-1,628.31

Finding the Fourth Proportional to 2,806.55, 3,873.04 and 1,628.31

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Solution

The fourth proportional to 2,806.55, 3,873.04 and 1,628.31 is: 2,247.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,806.55 : 3,873.04 = 1,628.31 : x
  2. Step 2: Convert to fraction form
    2,806.55/3,873.04 = 1,628.31/x
  3. Step 3: Cross multiply
    2,806.55x = 3,873.04 × 1,628.31
  4. Step 4: Simplify right side
    2,806.55x = 6,306,509.76
  5. Step 5: Solve for x
    x = 6,306,509.76/2,806.55
  6. Step 6: Final answer
    x = 2,247.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.